Solvent-free single-component polyurethane adhesive for gravel water permeable pavement and preparation method of solvent-free single-component polyurethane adhesive

A technology of polyurethane adhesive and permeable pavement, applied in non-polymer adhesive additives, adhesive additives and other directions, can solve the problems of complex preparation process, poor impact resistance, high brittleness, etc., and achieve simple operation and convenient construction. Effect

Inactive Publication Date: 2017-06-16
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses epoxy resin as the base material, which is brittle, easy to crack, and poor in impact resistance.
[0005] Chinese patent CN104004490A uses polyurethane as the base material and adds various functional resins to prepare a two-component permeable brick adhesive with fast curing speed and good mechanical properties, but the preparation process is complicated and inconvenient to use

Method used

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  • Solvent-free single-component polyurethane adhesive for gravel water permeable pavement and preparation method of solvent-free single-component polyurethane adhesive
  • Solvent-free single-component polyurethane adhesive for gravel water permeable pavement and preparation method of solvent-free single-component polyurethane adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare 1000g of one-component polyurethane adhesive, 350g of polyether polyol (ring-opening of propylene oxide, end-capping of ethylene oxide, functionality of 2, molecular weight of 2000-3000) polyether polyol of formula quantity, polyether Add 80g of polyol (polyol with a functionality of 3 and a number average molecular weight of 300-500), 70g of castor oil and 100g of plasticizer (octyl epoxy soyate) into the reaction kettle at room temperature, heat up to 100°C, and dehydrate 1.5 hours (-0.1MPa vacuum), the moisture is lower than 0.1%, lower the temperature to 40°C, add polyphenyl polymethylene polyisocyanate 300g, antioxidant 1,3,5-trimethyl-2,4, 6-tris(3,5-di-tert-butyl-4-hydroxybenzene) 10g, UV absorber 2,4-tert-butyl-6-(5-chlorobenzotriazolyl-2) phenol 10g, Raise the temperature to 80°C for 2 hours, cool down to 65°C, add 5g of catalyst rare earth naphthenate, 50g of isocyanatopropyl triethoxysilane, 2-isopropyl-N-hydroxyethyl-oxazolidinate 15g of quasi-compo...

Embodiment 2

[0026] Prepare 1000g of one-component polyurethane adhesive, 280g of polyether polyol (ring-opening of propylene oxide, end-capping of ethylene oxide, functionality of 2, molecular weight of 2000-3000) polyether polyol of formula quantity, polyether Add 70g of polyol (polyol with a functionality of 3 and a number average molecular weight of 300-500), 80g of castor oil and 80g of plasticizer (octyl epoxy soyate) into the reaction kettle at room temperature, heat up to 100°C, and dehydrate 1.5 hours (-0.1MPa vacuum), the moisture is lower than 0.1%, lower the temperature to 40°C, add MDI and polyphenyl polymethylene polyisocyanate 140 and 300g, antioxidant 1,3,5-trimethyl -2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzene)benzene 5g, UV absorber 2,4-tert-butyl-6-(5-chlorobenzotriazolyl- 2) 5 g of phenol, react for 2 hours at 80 °C, cool down to 65 °C, add 8 g of catalyst rare earth naphthenate, 20 g of isocyanatopropyl triethoxysilane, 2-isopropyl-N-hydroxyethyl Base-oxazolidine es...

Embodiment 3

[0028] Prepare 1000g of one-component polyurethane adhesive, 300g of polyether polyol (opening of propylene oxide ring, end-blocking of ethylene oxide, functionality is 2, molecular weight is 2000-3000 polyol) of formula quantity, polyether Add 100 g of polyol (polyol with a functionality of 3 and a number average molecular weight of 300-500) and 80 g of plasticizer (epoxy soybean oleate) into the reactor at room temperature, raise the temperature to 100 ° C, and dehydrate for 1.5 hours (- 0.1MPa vacuum), the moisture is lower than 0.1%, lower the temperature to 40°C, add MDI and polyphenyl polymethylene polyisocyanate 70 and 300g, antioxidant 1,3,5-trimethyl-2,4 , 5g of 6-tris(3,5-di-tert-butyl-4-hydroxybenzene)benzene, 5g of ultraviolet absorber 2,4-tert-butyl-6-(5-chlorobenzotriazolyl-2)phenol , reacted at 80°C for 2 hours, lowered the temperature to 65°C, and added 5g of catalyst rare earth naphthenate, 30g of isocyanatopropyl triethoxysilane, 2-isopropyl-N-hydroxyethyl-ox...

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Abstract

The invention belongs to the technical field of chemical synthesis, and particularly relates to a solvent-free single-component polyurethane adhesive for a gravel water permeable pavement and a preparation method of the solvent-free single-component polyurethane adhesive. The solvent-free single-component polyurethane adhesive for the gravel water permeable pavement is prepared from the following raw materials: polyether polyol, isocyanate, a plasticizer, a silane coupling agent, an antioxidant, an ultraviolet absorbent, a catalyst and a latent curing agent. According to the solvent-free single-component polyurethane adhesive for the gravel water permeable pavement, under a condition of no existence of a solvent, the problems of pungent smell and harm to the health due to the existence of an organic solvent are solved; the solvent-free single-component polyurethane adhesive is an environmentally-friendly adhesive; by the introduction of the silane coupling agent and the latent curing agent, the adhesion strength of the single-component adhesive is improved, and the problems of generation of bubbles during curing and low curing speed are solved; meanwhile, the solvent-free single-component polyurethane adhesive is heat-resistant and low-temperature-resistant; compared with a two-component adhesive, the single-component adhesive has the advantages of simple operation and convenience for construction.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a solvent-free one-component polyurethane adhesive for gravel permeable pavement and a preparation method thereof. Background technique [0002] The rapid development of modern cities, the increase of supporting road traffic facilities, surface pavement and artificial structures, the impermeable materials that make up these structures, such as cement, asphalt, sidewalk bricks, metal, etc., have led to the frequent occurrence of driveways, sidewalks, parking lots and squares. Become an impermeable hard ground, blocking the opportunity for rainwater to penetrate into the soil, making rainwater go straight to rivers or underground roads and cannot be recycled back to the ground. The circulation of water, thereby greatly reducing the ability to regulate the temperature and humidity of the urban surface, produces the so-called "heat island effect". [0003] The...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J11/06C08G18/76C08G18/67C08G18/66C08G18/48C08G18/32
CPCC09J175/08C08G18/6677C08G18/6696C08G18/7664C08G18/7671C08K5/34C08K5/5465C09J11/06
Inventor 徐军孙清峰李鲁中梁玲刘浩特
Owner SHANDONG INOV POLYURETHANE
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